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APPENDIX B: CALIFORNIA KNEADING COMPACTION METHOD
B-1 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: August 16, 2004 Participation: 64 Total Laboratories 2 Laboratories Determined to be Invalid 2 Laboratories Determined to be Outliers 60 Total Laboratorires Included in Analysis Sample 41 Sample 42 CV% CV% Average Average (Sample 41) (Sample 42) 4.8 24.41.62 4.58 21.86 1.69 8.2 8.8 1s d2s 7.40 6.94 0.61 1.72 CV% 1s Reproducability (Sample 42)Reproducability (Sample 41) d2s CV% 1s d2s Sa m pl e 42 Average Results Graph and Analysis Results for AASHTO T269 Percent Air Voids in Compacted Dense and Open Asphalt Mixtures AMRL Hot-Mix Asphalt Design Samples 41 and 42 AMRL Hot-Mix Asphalt Design Samples 41 and 42 Sample 41 Percent Air Voids Using the California Kneading Compactor- T247 Repeatability Lines With Small Dash Marks - Sample Outlier Lines With Alternating Dash Marks - Sample Medians Line With Large Dash Marks - Center Diagonal Black Hexagon - Data Within is Used for Analysis Graph Legend -2 0 2 4 6 8 10 12 14 -2 0 2 4 6 8 10 12 14
B-2 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: August 16, 2005 Participation: 72 Total Laboratories 0 Laboratories Determined to be Invalid 3 Laboratories Determined to be Outliers 69 Total Laboratorires Included in Analysis Sample 43 Sample 44 CV% CV% Average Average (Sample 43) (Sample 44) 3.4 22.11.15 3.24 19.95 1.22 9.2 9.7 1s d2s 5.75 5.50 0.53 1.50 CV% 1s Reproducability (Sample 44)Reproducability (Sample 43) d2s CV% 1s d2s Sa m pl e 44 Average Results Graph and Analysis Results for AASHTO T269 Percent Air Voids in Compacted Dense and Open Asphalt Mixtures AMRL Hot-Mix Asphalt Design Samples 43 and 44 AMRL Hot-Mix Asphalt Design Samples 43 and 44 Sample 43 Percent Air Voids Using the California Kneading Compactor- T247 Repeatability Lines With Small Dash Marks - Sample Outlier Lines With Alternating Dash Marks - Sample Medians Line With Large Dash Marks - Center Diagonal Black Hexagon - Data Within is Used for Analysis Graph Legend 0 2 4 6 8 10 0 2 4 6 8 10
B-3 Ellipse - 2 Std Dev for Within and Between Lab Variation Source of Data: AASHTO Materials Reference Laboratory Proficiency Sample Program Final Report Issued: August 17, 2006 Participation: 78 Total Laboratories 0 Laboratories Determined to be Invalid 3 Laboratories Determined to be Outliers 75 Total Laboratorires Included in Analysis Sample 45 Sample 46 CV% CV% Average Average (Sample 45) (Sample 46) Percent Air Voids Using the California Kneading Compactor- T247 Repeatability Lines With Small Dash Marks - Sample Outlier Lines With Alternating Dash Marks - Sample Medians Line With Large Dash Marks - Center Diagonal Black Hexagon - Data Within is Used for Analysis Graph Legend Sample 45 1s d2s Sa m pl e 46 Average Results Graph and Analysis Results for AASHTO T269 Percent Air Voids in Compacted Dense and Open Asphalt Mixtures AMRL Hot-Mix Asphalt Design Samples 45 and 46 AMRL Hot-Mix Asphalt Design Samples 45 and 46 Reproducability (Sample 46)Reproducability (Sample 45) d2s CV% 11.3 10.9 1s d2s 3.67 3.80 0.41 1.17 CV% 1s 2.8 26.30.98 2.76 26.58 1.00 -2 0 2 4 6 8 -2 0 2 4 6 8
